Finding the Fourth Proportional to 16,885.50, 23,300.95 and 9,810.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,885.50 : 23,300.95 = 9,810.55 : x
2. Step 2: Convert to fraction form
   16,885.50/23,300.95 = 9,810.55/x
3. Step 3: Cross multiply
   16,885.50x = 23,300.95 × 9,810.55
4. Step 4: Simplify right side
   16,885.50x = 228,595,135.02
5. Step 5: Solve for x
   x = 228,595,135.02/16,885.50
6. Step 6: Final answer
   x = 13,537.95